fit_3d
fit a deformable model to a MINC volume using surface deformation
fit_3d input.obj output.obj model.obj model_weight centroid_weight volume.mnc threshold +|-|0 tangent_weight out_dist in_dist float/nofloat oversample [n_iters] [n_between] [max_step] [values_file min max]
DESCRIPTION
fit_3d fits a 3D surface to a volume using a deformable model approach. The input surface is iteratively deformed towards the boundary defined by the volume threshold. The deformation is controlled by a model surface (with model_weight), a centroid constraint (centroid_weight), and a tangent weight. The direction of deformation is specified as + (outward), - (inward), or 0 (both). The out_dist and in_dist parameters limit the search range. The float/nofloat option controls whether vertices float freely. An optional values_file with a min/max range can further constrain the deformation.
OPTIONS
This tool uses positional arguments only. There are no named options.
model.obj- The model surface object used as a shape prior.
model_weight- Weight of the model shape constraint.
centroid_weight- Weight of the centroid constraint.
threshold- Volume intensity threshold defining the target boundary.
+|-|0- Direction of deformation:
+for outward,-for inward,0for both. tangent_weight- Weight of the tangential smoothness constraint.
out_dist- Maximum outward search distance.
in_dist- Maximum inward search distance.
float/nofloat- Whether vertices float freely (
float) or are constrained (nofloat). oversample- Oversampling factor for the deformation.
n_iters- Optional number of deformation iterations.
n_between- Optional number of iterations between convergence checks.
max_step- Optional maximum step size per iteration.
values_file min max- Optional per-vertex values file with a valid range to constrain deformation.
AUTHOR
David MacDonald - McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University.
COPYRIGHTS
Copyright © by David MacDonald